Improved drilling-machine



UNITED STATES PATENT OFFICE.

JESSE BUTTON, OF SPRINGFIELD, MASSACHUSETTS, ASSIGNOR TO HIM- SELF ANDRICHARD F. HAWKINS, OF SAME PLACE.

IMPROVED DRlLLlNG-MACHINE.

Specification forming part of Letters Patent No. 50,985, dated November14, 1865.

To all whom it man] concern:

.Be it known that I, JEssE BUTTON, of Springfield, Hampden county,Common wealth of Massachusetts, have invented certain Improvements inDrilling-Machines for Artesian Wells; and I do hereby declare that thefollowing is a full and exact description there? of, reference being hadto the accompanying drawings, and to letters of reference markedthereon.

In the drawings, Figure l is a plan view of my improved machine; Fig. 2,a front view, and Fig. 3 a side view of the same. Figs. 6, 4, and 5 aredetail views, showing the arrangement of the spring-lightener; and Fig.7 is a detail view, showing the automatic feedmotion.

This invention consists in applying to a drilling-machine ofthe kindabove mentioned two improvements-viz., a lightener', formed by means ofapeculiar spring, to be hereinafter described, and an automatic feedforgiving a partial rotation to the drill at each stroke.

I will iirst describe the construction of the lightener. It consists oftwo springs, A B, of peculiar construction, each consisting of a numberof leaves, a a and a a', and a beam, C, which is attached to the underside of the spring' A and passes over the spring B. A rope, D, which isattached to the drill E, passes over a sheavc or pulley, l), in the endof this beam arrd is fastened to the windlas F.

The automatic feed consists of a shaft, G, driven from the main shaft bythe pulley c. This shaft has a pulley, d, over which a belt, p, passes,which passes around the shaft or drill E. On the endfof the shaft is ablock, g, which is pressed up against the shaft by the spring la., sothat when the belt is moved up and down with the shaft it may be alwaystight upon the same.

The general arrangement for working the drill is used on numerous othermachines, and consists of a cross-head, H, moved up and down by thecranks l1l h on the shaft I, by means of the connections k k. In thiscrosshead are hung on the centers l Z two pieces, K

The operation of this machine I will now describe.

Power being applied to the main shaft at L, it drives, by means of thepulleys M N, the shaft I. This shaft works the cross-head up and down,as before mentioned. As the crosshead moves down the levers K K slipalong the shaft or drill E without moving it, but when they begin tomove up the friction on'the shaft forces the ends m m of these leversdownward, causing them to bind on the drill-shaft, and thus raise it upwhen it has reached a certain" height, which is adjustable.'

The other ends, u n, of these levers K K strike projections O O, thusreleasing the drill-shaft and allowing it to drop. Now, as the lengthot' the drill-shaft E must increase as the depth increases, it will beseen that the weight which drops must increase as the well gets deeper,and soon it becomes inconveniently heavy, and if carried to a greatdepth the heavy weight injures the drill, and often causes breakage ofthis and other parts of the Inachine. To obviate this I attach myspringlightener, constructed as I before described it, my springs a a,Src., being usually made of some hard wood. I commence by putting oneleaf (t into each spring A B, and gradually increase the number as thewell goes deeper. In this way it will be seen that most ofthe weight isborne by the spring, and by turning the windlass I can increase ordiminish the tension, and thus regulate the blow, and by putting in asufficient number ofleaves I can make a spring sufliciently strong tobear up 'any weight.

The operation of my feed is simply, by means ofthe spring It, to keepthe belt p always tight around the shaft as it mores up and down, sothat when it is released to drop it may give it a partial turn orrotation.

The principal advantage which I claim for this machine over others isthat by means of the lightener before described I am able to drillquicker, deeper, and better than any other machine, while it is notliable to get out oforder and is cheaply built.

Now, having described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. The lightener consisting of the combination of the springs A B andbeam C with the drill-shaft E, substantially in the manner and for thepurpose described.

2. The automatic feed-motion, when constructed and applied to adrilling-machine in the manner and for the purpose herein set forth.

JESSE BUTTON.

W'itnesses A. CLARKE BAUM, M. DARWIN DREW.

